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Finding the Fourth Proportional to 6,989.79, 10,485 and 2,310.06

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Solution

The fourth proportional to 6,989.79, 10,485 and 2,310.06 is: 3,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.79 : 10,485 = 2,310.06 : x
  2. Step 2: Convert to fraction form
    6,989.79/10,485 = 2,310.06/x
  3. Step 3: Cross multiply
    6,989.79x = 10,485 × 2,310.06
  4. Step 4: Simplify right side
    6,989.79x = 24,220,979.10
  5. Step 5: Solve for x
    x = 24,220,979.10/6,989.79
  6. Step 6: Final answer
    x = 3,465.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.